99
Other Invertebrates
Invertebrates as Insects, Annelids and other Crustaceans (prawns, shrimps) are
inhabitants of mangrove forest, but there is not data about these invertebrates in
mangroves of Wouri estuary river. Although the mangal may be a sink for settlement
and early growth of shrimp and prawns, it may also be a source for larvae that are
transported to other habitats (Kathiresan and Bingham 2001).
3.3.2.2 Mangrove Vertebrates
The distribution of the mammals in the mangroves is hardly better known. The West
African Manatee (Trichechus senegalensis) occurred in the Wouri river estuary can
be considered as one of the most sanctuaries of Manatee in Cameroon coast. The
Table 3.2 (continued)
Species
Plaziat
(1974)
Boyé
et al.
(1975)
Bandel and
Kowalke
(1999)
Guiral
et al.
(1999)
NgoMassou
et al.
(2012)
Ongoing
research
Pachymelania
byronensis
−
+
+
+
−
+
Pachymelania fusca
+
−
+
+
+
+
Pachymelania
Granifera
−
−
−
−
+
+
Pachymelania mutans −
−
−
−
−
+
Pachymelania sp.
−
−
−
−
+
+
Potadoma lirincta
−
−
−
−
+
+
Potamopygus ciliatus −
−
+
−
−
−
Pupura callifera
+
−
−
−
−
Pupura yetus
+
−
−
−
−
−
Scabra scabra
+
+
−
−
−
−
Semifusus moris
−
+
−
+
−
−
Sepia officinalis
+
−
−
−
−
−
Siphora mouret
+
−
−
−
−
Tangelus angulatus
−
−
−
+
−
−
Tectarius granosus
+
+
−
−
−
−
Terebralia palustris
−
−
−
−
−
+
Thais callifera
+
+
−
+
−
+
Theodoxus niloticus
−
−
−
−
+
+
Theodoxus sp.
−
−
−
−
−
+
Thiaridae (Unknown
species)
−
−
−
−
−
+
Tympanotonus
fuscatus
+
−
+
+
+
+
Tympanotonus radula −
−
+
−
+
+
3 Impact of Urbanization on the Evolution of Mangrove Ecosystems…